发明名称 |
PARTICLE CONCENTRATION MEASURING DEVICE |
摘要 |
A particle concentration measuring device includes: a measurement region formation part which has a wall (10) of substantially ring-form and through an inner opening of which gas relatively flows orthogonally; a light curtain forming unit (12A, 12B) forming a planar light curtain (FL) in the inner opening: a particle detecting unit (15) receiving scattered light from particles passing through the light curtain (FL) to detect the particles; and a calculating unit (22) calculating particle concentration based on the total number of the particles detected by the particle detecting unit (15) in a volume of an airflow passing through the light curtain (FL) in a unit time. |
申请公布号 |
US2011304850(A1) |
申请公布日期 |
2011.12.15 |
申请号 |
US201113160100 |
申请日期 |
2011.06.14 |
申请人 |
SAKAMOTO KAZUHIKO;KAWAKITA HIROSHI;OKAMI HIROYUKI;ISO YUSUKE;OKAMOTO RYUTA;SHIN NIPPON AIR TECHNOLOGIES CO., L |
发明人 |
SAKAMOTO KAZUHIKO;KAWAKITA HIROSHI;OKAMI HIROYUKI;ISO YUSUKE;OKAMOTO RYUTA |
分类号 |
G01N21/53 |
主分类号 |
G01N21/53 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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